This high quality 2007 Lexus Is350 emergency key will fit your key fob or Smart Key. This emergency key needs to be cut before it can be used on your car. To cut this emergency key, please contact a local automotive locksmith or dealership. The price for cutting this key shell varies depending on your location. We also offer a high security key cutting service for $29.95. Please visit this link Key cut service for more information. This 2007 Lexus Is350 emergency key will only unlock the car and will not start the vehicle.